Adjustable nozzle



Aug. 21, 1934.

. L. W. MITCHELL ADJUSTABLE NOZ ZLE Filed May 11, 1932 INVENTOR. ZeaW/Vz'zc/re BY #Q. A TTORNEYS.

Patented Aug. 21, 1934 7733i U.N'ITED,'STATEIS. PATENT OFFICE i fi 7Leo-W. Mitchell fian iiralicisco,Calif. Applicants iiila iiftjj ioalseria 160,610,643 f hims-1 se-us.

My invention relates to improvements in .ad-: by screws lt-which arereceived in slots 8, (see justable nozzles, and it consists. ofthe;:combin a.-.; Figure 4), and are secured to the casing- 4. Thetions', constructions and arrangements herein? casing; may'be swung awayfrom the protector after described and claimed. .1 4. 3;a'iid thenlthescrews 7 may be loosened so as 5 An object of my invention is toprovide. a n-:im-.-- to rotate the nozzle 6 into the desired position,

provement overthe .adju'stablenozzle shown-in. whereupon the screws 7*maybe tightened. I my Patent No. 1,789,491,.issued January 20th, Aperforated flange-9 is carried by the casing 1931. In the patent, I showa nozzle especially. 4, and aperforated split ring 10 encircles thedesigned for fuel oil and. having an. atomizing flange'"9 and has ears11- connected to each other 10 cup whichis rotated for. causing theoilto .ro= by a" bolt 12. .The bolt-l2 may be loosened and 1 tate inone-direction. The patent also'shows an: the -ring lflrotatedwith'respect to the flange 9 air conduit having an annularopening disposed. so as-to -vary the/size of the air openings,-and inconcentric with-the atomizing cup and vanes this way, the auxiliary airintake is controlled, placed in the air conduit for causing the,airissu..- is i W n through n annular p 13 ing from theannular opening toflowin-a direce. formed by the nozzle protector 3 and the nozzle 6'. illtion that will cross the flow of oil as-it leaves ln Figure'3, I showan-atomizingcup-14 carried the .atomizing cup. This crossing of the,air; by a' tubulatr:member lfi. Figure 1 shows thestream with theoilstream results-in, a, perfect member 15 as passingthrough bearings 16and atomization and a proper burning of the mixas having a pulley 17secured to the end of thego ture." r j tube projecting beyondthebearings. The pulley 75 I In the present invention, I show novel means17' has-a belt 18 connecting it to a motor 19. The for directing the airstream at the desired angle." bearings- 16 are mounted in a casing 20,which I further show means for preventing dripping of holds oil. Thecasing 20 is integral with a main theoil from the atomizer cup after thedevice; air inlet 21 controlled by'a damper 22, and the 255 is turnedon. casing20 also forms a part of a gas inlet-23 that 80 i The device isfurther designedto, make use of; hasfa' valve 24 controlling the flow ofgas. i 1 gas in place of oil,if-that is desired. 1 Af farr25 is mountedon the tubular member Othenobjects and advantagesgwill"appearxinv 15amis 'dispos'ed 'in the casingl. A disc 26 the following specification,and the novel features, is carried by 'ribs' 27* which, in turn, arein'- 1' of the" device will be particularlypointed out in tegral withthe-casing 4. A sleeve 28 en 85' theappended claims. ,1. circles theatomizing cup 14 and is carried by My invention is illustrated intheaccompamh; theribs 27.- 4 I Itwill be-seen' from this constructioning drawing forming apartof this application; that when the-motor 19 is"actuated, the tubularinwhich i 1:1 1 member 15 will berotated and willrotate the fan Figure l'is a longitudinalsection through the? 25,causing air-to besucked through theairinlet 90 entire device, portionsbeing showninelevationg; 21;" and forced through the space between theFigure 2 is a rear elevation of the device; nozzle 6 and-the sleeve 28.r The atomizingcup 14 Figure 3 is an enlarged sectional .viewthrough isals rotated, V I a part .ofthe device; On'eof the prin'cipal features ofthe invention Figured is a section along the line 4-"-4.-O,f:is-to'direct the'stream ofair passing through the 95 Figure 3; and a ispace'29de'fined by the nozzle 6 and the sleeve Figure 5 is :a sectionalong the line,.5-.-f5- of. 28, so that this stream of air will cutacross the Figure 3. v I stream ofbilissuing from the cup 14. In FigureIn carrying out-my invention, I make use of 1'. 3, I-sh'ow'adisc '30secured tothe nozzle 6 and} a furnace wall 1, and to this wall, I securea'" haVing-a plurality of openings 31. Next to th 100 furnace plate 2. f-A nozzle protector,indicated? fixed-disc 30, I"dispose a plurality offloating discs generally at 3, is carried by the furnace plate. 32, allhaving openings 33 registering with the The parts thus far described aresecured to the openings 31. A flexible wire 34 is secured to the Ifurnace front 1. disc 30 and is passed through registering openings InFigures 1 and 2, I show a blower casing 4, 35 in the discs 32. The freeend of the wire is 195 which is hinged at 5 to the furnace plate 2, andpassed through an opening 36 in the sleeve 28, this permits the casingto be swung away from (see Figures 3 and 5), and the sleeve is providedthe nozzle protector 3 when adjusting the parts with a recess 37 forreceiving the free end of .in the manner hereinafter described. A nozzlethe wire.

6 is adjustably secured to the blower casing 4 When the nozzle 6 isrotated with respect to 1m the sleeve 28, it will carry the disc 30therewith. The moving of the disc 30 with respect to the sleeve 28 willcause the wire 34 to flex and the free end to swing in the recess 37.This swinging of the wire 34 into an angular position will cause thediscs 32 to swing in the same angular positions and to incline theregistering openings 31 and 33 so that air passing through theseopenings. will be directed at the desired angle. e.

An oil pipe 38 is disposed inside of the tubular member 15, (see Figures1 and 3), and this pipe carries a mouthpiece 39 that has an upwardly:turned end. An oil drip ring 40 is mounted on the mouthpiece 39. Thepipe 38 does not rotate with the tubular member 15, but-passes throughthe member and into a valve '41. pipe 42 communicates withthafuelpipe-38 and the flow of oil is controlled by the valve, 41 v From theforegoing description of the various parts of the device, theoperetionthereof may be. readilyunderstood. 1, W in o l. he. valve .24 i closedand the valve 41 is opened to permit the desired quantity of oil to flowthrough the tube 38.- The motor 19 is connected with a source ofelectricity. and this will cause the cup 14 torotateandwill also forceai h ough t passaeezil- -Ihe. amount of air is control ed y e dampe-.22; The air issuin f om the pas ag 9. is directed by th discs 30. and3.2 to cut acros the ream of oil i suing from t c p 4- The angle oftheflow f air canbe r la ed in thegmanner already set forth. The auxiliaryair flow through thepassage 13 iscontr l d yth irin 10.,

'When the device is stopped, all will not drip fromthe cup 1d becausethe mouth 39 is. turned up at its nd and this prevents. th il in. thenine 38 f m rainingv if g Whenea is us d in place of o lrth valvezlais pn d and he d mper 22 is also op ned so that th pr p r p p rtion, of gas.and air'is del ered o e an In this a he cup 4 is not used and the gasand air wi l issue frcmi he passage 9 and .Will b rn up n enterin vthefurnace- While Ihave shown only the preferred form of my invention, itshouldbe understood that various changes or modifications m ybe madewithin the scope of he appended claimswithout depart ing from the spiritof the invention. g

le a z. 1 e.

1'. The combination with an air delivery nozzle, f. an oil-whirling memr mounted in the nozzle and p c d erefr m to form an annular air Ifdischarg ope ng, m ans for delive -ins oil t said member for causing afilm Qf:oi,1 to be ejected therefrom and adjustable means disposed insaid air-delivery nozzle for imparting a swirling movement; to airflowing t erethrou h, said. nozzle bein fashi n d fordir ine the airinto intimate. contact with the oil issuing from said oil-whirlingmember, said means comprising a plurality of discs having registeringope-nmgs therein for the passage. of airtherethrough, and means forswingjing the discs into diiferent angular positions for causing thealigned openingsto direct the air in the desired direction.

An oil inlet 2. In combination, a nozzle having a fluid passageway, aplurality of coaxially mounted, revolvable discs covering the passagewayand having registering eccentric perforations and a connection betweenthe discs whereby rotary movement of one disc is transmitted to theother discs for relative rotation through uniformly decreasing angles.

3. In combination, a nozzle having a fluid passageway, a plurality ofcoaxiallywmounted, revolvable discs covering the passageway and havingregistering eccentric perforations, and a flexiblepwire extendingthrough the discs in spaced relation to the axis thereof and having oneend pivotally secured to a stationary element with slight freedom ofsliding motion whereby rotary movement of one disc is partly transmittedto the other discs.

4, In combination, a nozzle having a fluid passageway, a plurality ofcoaxially mounted revolvable discs covering the passageway, and havingregistering eccentric perforations, a flexible;

wire'extending through the discs in spaced relartion to the axis thereofand a. stationary object having arecess into which one, end of the wireextends,.the recess havinga restricted entrance for the wire so as tohold the. latter against movement atthe entrance;

5. In an oil burnenan air delivery nozzlaarevolvable oil whirling membermounted in said nozzle and being spaced therefrom to form an an nularpassageway, through which airunder prese sure may be forced, means atthe discharge end of the passageway for changing the direction of flowof the air and a non-rotating tube encircling. the oil whirling. memberfrom the receiving endof the passageway to the direction changing rotarymeans for keeping the .air out of contact with the oil whirling member.o;

6. In an oil burner, an air delivery nozzle, an oil whirlingmembermounted in said nozzle and being spaced therefrom to form anannular dis-.7 charge opening, a plurality of coaxially mounted.

revolvable discs covering the opening and having registering eccentricperforations and a connection-between thediscs whereby rotary movementof one disc is transmitted to the other discs for relative rotationthrough uniformly decreasing angles. I

- 7. In combination, anozzlehaving a'fiuid pas-m sageway, a plurality ofcoaxially' mounted re volvable discs'covering the passageway and havingregistering eccentric perforations and a fiex ible wire extendingthrough the discs in spaced relation to the axis thereof whereby rotarymovement of one disc is partly transmitted to the other discs.

8.- In combination, a nozzle having a-fiuid passageway, a plurality ofcoaxially mounted .-re. volvable discs covering the passageway andhavingregistering eccentric perforations and a flexible wire extending throughthe discs in spaced'relation to the axis thereof whereby rotarymovementof one disc is partly transmitted to the other discs, the wire. havingmeans associatedtherev with for limiting its. turnin m vem nt. I Y LEOW. MITCHELL.

